Comments by Poettering concerning how "haters" like the Gentoo crowd will be forced to adopt systemd included references to the kernel. I forget the details, but basically, if they can influence the kernel in any way, they will. Their goal is complete takeover after all. And soon it will be unavoidable. It is a transformation of the system, not a tweak. It is also a hostile corporate takeover. One only needs to research what systemd is, will be and who is behind it. There is enough information to write a book.